Klitschko: My mission is not over

Wladimir Klitschko has insisted he still has unfinished business ahead of the 62nd fight in his professional career.

Klitschko, 38, will fight Australian Alex Leapai later this month, and has declared himself the "strongest boxer in the world" as he prepares to defend his WBA, IBF, WBO and IBO belts.

"Leapai will try and beat me with pure violence. Technique and tactics aren't his strengths. He's lacking the experience and I'll use that against him," Klitschko said.

"I'll demonstrate that I'm the strongest boxer in the world. My mission isn't over yet."

The Ukrainian heavyweight also revealed that he is still reeling from the loss of former coach Emanuel 'Manny' Steward, who died 18 months ago.

"Perhaps it sounds a little crazy, but when I am in the gym I still hear his voice," Klitschko said.

"He whispers things in my ear when I am in the ring. We had previously talked about things for hours, from which I still benefit today.

"We still do things today exactly how Emanuel wanted them to be done. It starts with the small things. I feel his spirit, his strength and I always definitely know whether or not he is happy with my training."